﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace F1
{
    class Circle: Shape
    {
        public int radius { get; set; }
        public Circle(int a)
        {
            this.radius = a;
        }
        public override void GetArea()
        {
            base.GetArea();
            Console.WriteLine(radius * radius * 3.14);
        }
    }
}
